Cook lasagna noodles according to package directions; drain and set aside.
Cook beef in a large skillet, stirring until it crumbles and is no longer pink; drain. Stir in sauce.
Layer one-third each of lasagna noodles, ricotta cheese mixture, shredded cheese, and beef mixture in a lightly greased 13X9 inch baking dish. Repeat layers twice. Bake at 375 degrees for 35 to 40 minutes. Let stand 5 to 10 minutes before serving.
Note: May add parmesan, parsley and egg to ricotta mixture for extra taste and fluffier texture.
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